Trojan.Nanocore

By CagedTech in Trojans
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Threat Scorecard

Popularity Rank: 5,575
Threat Level: 80 % (High)
Infected Computers: 22,670
First Seen: July 27, 2015
Last Seen: February 18, 2026
OS(es) Affected: Windows

Trojan.Nanocore is a dangerous threat that leverages remote access tool/remote administration tool (RAT) functions to attack a vulnerable computer. The Nanocore threat is usually identified as sneaky malware that may load on a computer where it runs in the background undetected. Such an action is a common characteristic of Trojan horse threats, and its ability to connect to remote sources or hackers is the RAT side of its source code.

Nanocore may load on a computer and then seek out data stored on the infected computer’s hard drive where it may transmit or allow a remote attacker to access the data. Such actions may take place all without any indication to the computer user, which makes Nanocore extremely dangerous.

In most cases, Nanocore will spread primarily through spam campaigns leveraging spam email attachments that otherwise look like harmless files in the for of either PDFs, MS office documents, photo files, or even executable files. Unsuspecting computer users may receive a spam message containing Nanocore that appears to be an enticing email from an alleged trusted source.

When loaded, Nanocore may hide under an unsuspecting file running within the Windows operating system. Simply stopping the process of the Nanocore file and deleting it may not completely eliminate the Nanocore threat from an infected system.

Those who may suspect their system encountering Nanocore will want to promptly utilize an antimalware resource to safely identify the Nanocore threat and allow it to be automatically removed from the infected system. Prompt removal of Nanocore will help ensure that personal data is not stolen and exploited, which can lead to many other issues, such as Identity theft.

SpyHunter Detects & Remove Trojan.Nanocore

File System Details

Trojan.Nanocore may create the following file(s):
# File Name MD5 Detections
1. lantern.exe 0b9673f415a57e85be632b45caf3277b 3
2. nvdisplay.containerlocalsystem.log bf5c83624d7c6da5e0de6f5a7c523429 2
3. Hostnet.exe 1ed4196a7a4780dd900d57d5d1cfdebd 1
4. Zcgsfujflba.exe 6d0f7f521401804aef80442913fce369 1
5. firefox.exe c4426ddc844a2acd9f0c9a1706eb6253 1
6. f81f76a5a3359095e4967bcd4248b96d f81f76a5a3359095e4967bcd4248b96d 0
7. 733664ee445129ed76e8397b4f8929d2 733664ee445129ed76e8397b4f8929d2 0
8. file.exe 6d9e987b193c1b78aaddaa86b17e0a58 0
More files

Registry Details

Trojan.Nanocore may create the following registry entry or registry entries:
Regexp file mask
%APPDATA%\Fonts\dll[RANDOM CHARACTERS]host.exe
%APPDATA%\Microsoft\Windows\Start Menu\Programs\Startup\Client.exe
%AppData%\Microsoft\Windows\Start Menu\Programs\Startup\scvhost.url
%PROGRAMFILES%\ARP Service\arpsvc.exe
%PROGRAMFILES(x86)%\AGP Service\agpsvc.exe
%PROGRAMFILES(x86)%\ARP Service\arpsvc.exe
%TEMP%\tmp.exe
%TEMP%\win\filename.vbs
%USERPROFILE%\chrome.exe

Directories

Trojan.Nanocore may create the following directory or directories:

%APPDATA%\browserrr

Analysis Report

General information

Family Name: Trojan.Nanocore
Signature status: No Signature

Known Samples

MD5: 00c7c183854655a60cb29dacd81474d0
SHA1: cb765589ad4e9fd8f984a3217d31c62639432b4b
SHA256: D22486FD8AA97B7CBF49110B23D603B419E53279D321889D262F58BF989EBEF6
File Size: 249.79 KB, 249789 bytes
MD5: 36c6a4f22db81a306509267d10858885
SHA1: 8f1702d169a069da64c10937f0011e654cf11b96
SHA256: 80EF9EEDC352C5B849C01E9265E9AA606E0B92C3643ACA148ED25A9618754FD4
File Size: 495.13 KB, 495128 bytes
MD5: cf367f586eec6ee8e2ed1330426cb3d0
SHA1: fd63b6f63f31be1502453dc8cf22ec8c7352d7c1
SHA256: 922EE33BBDF0BBDE2DE20D51161CBDD1D7ACD87BB35B2B2D4839FDCC337B3220
File Size: 3.08 MB, 3079168 bytes
MD5: 829d3d69613e5fd6fae72698f0344e75
SHA1: 2876b7fde017322bea3939aa14bd0a9f58ffc29f
SHA256: 3DF253EB882AB2CA863152C93FD971F953AB2700FFACDB9C387378C0B560F82B
File Size: 249.79 KB, 249791 bytes

Windows Portable Executable Attributes

  • File doesn't have "Rich" header
  • File doesn't have debug information
  • File doesn't have exports table
  • File doesn't have relocations information
  • File doesn't have resources
  • File doesn't have security information
  • File has TLS information
  • File is .NET application
  • File is 32-bit executable
  • File is console application (IMAGE_SUBSYSTEM_WINDOWS_CUI)
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  • File is either console or GUI application
  • File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
  • File is Native application (NOT .NET application)
  • File is not packed
  • IMAGE_FILE_DLL is not set inside PE header (Executable)
  • IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)

File Icons

File Traits

  • .NET
  • 2+ executable sections
  • dll
  • HighEntropy
  • No Version Info
  • x86

Block Information

Total Blocks: 8
Potentially Malicious Blocks: 3
Whitelisted Blocks: 0
Unknown Blocks: 5

Visual Map

? ? x ? x x ? ?
0 - Probable Safe Block
? - Unknown Block
x - Potentially Malicious Block

Similar Families

  • Trojan.Downloader.Gen.M

Windows API Usage

Category API
Syscall Use
  • ntdll.dll!NtAccessCheck
  • ntdll.dll!NtAlertThreadByThreadId
  • ntdll.dll!NtAlpcSendWaitReceivePort
  • ntdll.dll!NtApphelpCacheControl
  • ntdll.dll!NtClose
  • ntdll.dll!NtConnectPort
  • ntdll.dll!NtCreateMutant
  • ntdll.dll!NtCreateSection
  • ntdll.dll!NtDuplicateToken
  • ntdll.dll!NtFreeVirtualMemory
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  • ntdll.dll!NtMapViewOfSection
  • ntdll.dll!NtOpenFile
  • ntdll.dll!NtOpenKey
  • ntdll.dll!NtOpenKeyEx
  • ntdll.dll!NtOpenProcessToken
  • ntdll.dll!NtOpenProcessTokenEx
  • ntdll.dll!NtOpenSection
  • ntdll.dll!NtOpenSemaphore
  • ntdll.dll!NtOpenThreadTokenEx
  • ntdll.dll!NtProtectVirtualMemory
  • ntdll.dll!NtQueryAttributesFile
  • ntdll.dll!NtQueryDebugFilterState
  • ntdll.dll!NtQueryInformationProcess
  • ntdll.dll!NtQueryInformationThread
  • ntdll.dll!NtQueryInformationToken
  • ntdll.dll!NtQueryKey
  • ntdll.dll!NtQueryPerformanceCounter
  • ntdll.dll!NtQuerySecurityAttributesToken
  • ntdll.dll!NtQueryValueKey
  • ntdll.dll!NtQueryVirtualMemory
  • ntdll.dll!NtQueryVolumeInformationFile
  • ntdll.dll!NtQueryWnfStateData
  • ntdll.dll!NtReleaseMutant
  • ntdll.dll!NtReleaseSemaphore
  • ntdll.dll!NtReleaseWorkerFactoryWorker
  • ntdll.dll!NtRequestWaitReplyPort
  • ntdll.dll!NtSetEvent
  • ntdll.dll!NtSetInformationProcess
  • ntdll.dll!NtSetInformationVirtualMemory
  • ntdll.dll!NtSetInformationWorkerFactory
  • ntdll.dll!NtSubscribeWnfStateChange
  • ntdll.dll!NtTestAlert
  • ntdll.dll!NtTraceControl
  • ntdll.dll!NtUnmapViewOfSection
  • ntdll.dll!NtUnmapViewOfSectionEx
  • ntdll.dll!NtWaitForAlertByThreadId
  • ntdll.dll!NtWaitForSingleObject
  • ntdll.dll!NtWaitLowEventPair
  • ntdll.dll!NtWriteFile
  • UNKNOWN

1 Comment

help me every single time I try to deleat the file it leads me to this file named version

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